"Mack Jones has been a safety engineer at Zumwalt Processing company for almost 25 years. His son David is a recent college graduate who has been the assistant safety director at another company for just six months. Over supper last night, they had a discussion about work injuries. During the discussion, Mack said he thought back injuries were still the problem that safety professionals should worry about the most. David disagreed. He said repetitive strain/soft tissue injuries such as carpal tunnel syndrome were a bigger problem in the modern computerized workplace. What is your opinion?"